Archived posting to the Leica Users Group, 2001/10/05
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]At 12:01 PM 10/5/01 -0700, Feliciano di Giorgio wrote: >I'm having a terrible time with converting modern International >aperature values to pre-war German numbers. Anyone have a chart or >conversion method? No rocket science here, Feliciano. They are just 1/3 of a stop apart. Both scales are geometric in their progression -- that is, each f/stop admits 1/2 the light of the next-larger size. Marc msmall@roanoke.infi.net FAX: +540/343-7315 Cha robh bąs fir gun ghrąs fir! - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html